Text (SA): Return target permanent to its owner's hand. ; Cycling {5}{W}{U}{B}. ; When you cycle ~this~, return two target permanents to their owners' hands.
When you cycle, you must target two permanents if there are legal targets. [Shards of Alara FAQ 2008/09/23]
If there are not two targetable permanents in play, then the cycle ability not act on just one target. [D'Angelo 2008/10/12]
The "when you cycle" trigger is a separate ability from the Cycling and goes on the stack on top of it, so it will resolve first. [Shards of Alara FAQ 2008/09/23]